nitrogen CAS 7727-37-9

Nitrogen is a simple substance formed of nitrogen, the chemical formula N₂. Under normal temperature and pressure, it is a colorless and odorless gas, which can react with hydrogen to produce ammonia gas only under high temperature and pressure and catalyst conditions, and can combine with oxygen to produce nitric oxide under discharge. Even active metals such as Ca, Mg, Sr and Ba can react with them only when heated.

Chemical formula N₂

Molecular weight 28.01

CAS login number 7727-37-9

EINECS entry number 231-783-9

Melting point -209.86 ℃

Boiling point -196 ℃

Water soluble and slightly soluble

Density 1.25g /dm³ (standard condition)

Colorless and odorless gas on the outside

Inert protective gas, refrigerant and synthetic ammonia should be used

Security Description S38

UN Dangerous Goods Number 1066

Storage method

Store in a cool, ventilated warehouse. Keep away from fire and heat. The temperature of the reservoir should not exceed 30℃. The storage area should be equipped with leak emergency treatment equipment .

Transportation method

The safety helmet on the cylinder must be worn when transporting with rigid cylinders. Cylinders are generally placed flat, and the mouth of the bottle should face the same direction, not cross; The height shall not exceed the guardrail board of the vehicle, and the triangular wooden pad shall be stuck firmly to prevent rolling. It is strictly prohibited to mix with inflammable or combustible materials. Summer should be transported in the morning and evening to prevent sunlight exposure. It is forbidden to slip them in railway transportation.